APA (7th ed.) Zitazioa

(2017). Patterns / Claire Piddock ; edited by Keli Sipperley.

Chicago Style (17th ed.) Zitazioa

Patterns / Claire Piddock ; Edited by Keli Sipperley. 2017.

MLA (9th ed.) Zitazioa

Patterns / Claire Piddock ; Edited by Keli Sipperley. 2017.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.